Combining Philosophers
Ideas for Epictetus, Engelbretsen,G/Sayward,C and Nelson Goodman
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7 ideas
4. Formal Logic / A. Syllogistic Logic / 1. Aristotelian Logic
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13913
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The four 'perfect syllogisms' are called Barbara, Celarent, Darii and Ferio [Engelbretsen/Sayward]
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13914
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Syllogistic logic has one rule: what is affirmed/denied of wholes is affirmed/denied of their parts [Engelbretsen/Sayward]
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4. Formal Logic / A. Syllogistic Logic / 2. Syllogistic Logic
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13915
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Syllogistic can't handle sentences with singular terms, or relational terms, or compound sentences [Engelbretsen/Sayward]
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4. Formal Logic / A. Syllogistic Logic / 3. Term Logic
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13916
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Term logic uses expression letters and brackets, and '-' for negative terms, and '+' for compound terms [Engelbretsen/Sayward]
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4. Formal Logic / F. Set Theory ST / 5. Conceptions of Set / a. Sets as existing
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15510
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Classes are a host of ethereal, platonic, pseudo entities [Goodman]
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4. Formal Logic / F. Set Theory ST / 8. Critique of Set Theory
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9920
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Two objects can apparently make up quite distinct arrangements in sets [Goodman, by Burgess/Rosen]
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4. Formal Logic / G. Formal Mereology / 1. Mereology
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10657
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The counties of Utah, and the state, and its acres, are in no way different [Goodman]
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